There are alternative Bible theories which answer the question of the age of trees and other seemingly disagreeable facts without discounting the fact itself.
Gen 7:19 And the waters prevailed exceedingly upon the earth; and all the high hills, that were under the whole heaven, were covered.
Gen 13:9 Is not the whole land before thee? separate thyself, I pray thee, from me: if thou wilt take the left hand, then I will go to the right; or if thou depart to the right hand, then I will go to the left.
Gen 13:17 Arise, walk through the land in the length of it and in the breadth of it; for I will give it unto thee.
These scriptures all use the same Hebrew word for land and earth to describe the events during the lives of Noah first then Abraham. Its obvious by the text that while Abraham did walk the entire earth according to the text he did not cover the entire planet. Likewise while the flood did cover the entire earth it may not have covered the entire planet and at least one literal theory says it didn't. There are many other instances of the phrase "whole earth" predominantly being used in reference to the known earth rather than the entire planet in both Old Testament and New Testament.
In short while the word literally says "whole earth" concerning Noah and that must be true from the literal perspective. However we are allowed to question which "whole earth" is being referred to in order to have an understanding of what is literally written.